Update Docs CI

Looks like we missed changing this when we moved the repo from
dls-controls to DiamondLightSource...

Author: AlexanderWells-diamond

.github/workflows/docs.yml

@@ -41,11 +41,10 @@ jobs:
         run: mv build/html ".github/pages/${GITHUB_REF##*/}"
 
       - name: Publish Docs to gh-pages
-        # Only master and tags are published
-        if: "${{ github.repository_owner == 'dls-controls' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags')) }}"
+        if: github.ref_type == 'tag' || github.ref_name == 'main'
         # We pin to the SHA, not the tag, for security reasons.
         # https://docs.github.com/en/actions/learn-github-actions/security-hardening-for-github-actions#using-third-party-actions
-        uses: peaceiris/actions-gh-pages@bbdfb200618d235585ad98e965f4aafc39b4c501  # v3.7.3
+        uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: .github/pages